Kurobi: 3D BJJ Log & Analysis

Jiu-Jitsu Tracker & Game Map

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Explore a curated 3D map of 700+ positions and 1,400+ animated moves. Then turn your own training logs into a game map that shows what to practice next. Stop training blind. Kurobi turns each class, open mat, and competition into a connected map of your jiu-jitsu. Log what happened, see how positions and transitions connect, and choose what deserves work next. LOG WHILE IT'S FRESH Record drills, rolls, and competitions after training. Capture positions, transitions, outcomes, problems, notes, repetitions or duration, and your perspective in each exchange. BUILD YOUR GAME MAP Every log adds evidence to a personal view of your game. Trace the sequences you use, revisit the session behind each problem, and see how your training connects. REVIEW MOVEMENT IN 3D Explore a curated map of over 700 positions and 1400 animated transitions. Use schematic 3D previews to review how movements connect without pretending any catalog can represent every real-world variation. FIND WHAT TO PRACTICE NEXT Kurobi uses the outcomes and problem signals you record to surface failed transitions, missing responses, stuck positions, and items due for review. Build your practice queue from what actually happened on the mat. BUILT FOR THE GYM Core logging and map browsing work offline, with supported data syncing when you reconnect. Fast capture and large actions keep Kurobi useful between rounds. KUROBI PRO Kurobi Pro offers unlimited training logs through a monthly or annual auto-renewing subscription. Access to Kurobi after onboarding requires a subscription unless limited free access is offered in the app. Eligible new subscribers can start a 14-day free trial. After the trial, the subscription automatically continues at the selected plan’s price unless cancelled. Prices, trial eligibility, and promotional terms are shown before you confirm your purchase. Manage or cancel your subscription in your Apple Account settings. To avoid renewal after a free trial, cancel at least 24 hours before the trial ends. Kurobi's curated map and schematic previews support review but do not replace qualified in-person instruction, appropriate supervision, or your own judgment. Download Kurobi and turn your next session into a clear practice plan. Terms of Use: https://kurobiapp.com/terms Privacy Policy: https://kurobiapp.com/privacy

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Performance and general improvements

Version 1.0.21

The developer, Mark Isayan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Health & Fitness
    • Purchases
    • Location
    • Contact Info
    • User Content
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Mark Isayan
Size
  • 90.3 MB
Category
  • Sports
Compatibility
Requires iOS 16.4 or later.
  • iPhone
    Requires iOS 16.4 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
16+
In-App Purchases
Yes
  • Kurobi Pro Monthly $12.99
  • Kurobi Pro Yearly $119.99
  • Learn More
Copyright
  • © 2026 Mark Isayan
  • Developer Website
  • Privacy Policy